DG403CJ

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The DG403CJ is a monolithic CMOS device that acts as an analog switch, multiplexer, and demultiplexer. It is an integrated device, so it can perform the functions of multiple individual switches and multiplexers in one chip. The device has low channel-to-channel crosstalk and low switch resistance.

Application Field

The DG403CJ is designed to switch analog signals in a variety of applications. It is ideal for use in audio and video switching, as well as in medical, communications, and testing and measurement equipment. It can also be used in power supplies, automatic process control systems, and electronic control systems.

Working Principle

The DG403CJ consists of four independent switches, each with a unique dual-input and dual-output structure. Each input of the switch has separate positive and negative supply pins. When the positive supply pin is connected to the negative supply pin, the switch is closed. The switch can be opened by disconnecting the two supply pins. Each switch also has two select control inputs (S1 and S2) that determine which input is connected to the output of the device. When S1 and S2 are high, the switch will connect the A input to the A output; when S1 is low and S2 is high, the B input is connected to the A output; and when both S1 and S2 are low, the B input is connected to the B output.

The DG403CJ also contains a multiplexer and demultiplexer circuit. The multiplexer multiplexes two inputs, A and B, and can be routed to one output. The demultiplexer will take one input and route it to either A or B output. The multiplexer is controlled by the S2 line, while the demultiplexer is controlled by the S1 line. When both S1 and S2 are high, the multiplexer will multiplex A and B inputs, and the demultiplexer will route the input to A output; when S1 is low and S2 is high, the demultiplexer will route the input to the B output.

The DG403CJ is available in an industry-standard 16-pin DIP package and is rated for 5V operation. It is a low-cost, low-power device, making it ideal for many different applications.

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